Home / 146,770.80-219,864.60-80,091.60

Finding the Fourth Proportional to 146,770.80, 219,864.60 and 80,091.60

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Solution

The fourth proportional to 146,770.80, 219,864.60 and 80,091.60 is: 119,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,770.80 : 219,864.60 = 80,091.60 : x
  2. Step 2: Convert to fraction form
    146,770.80/219,864.60 = 80,091.60/x
  3. Step 3: Cross multiply
    146,770.80x = 219,864.60 × 80,091.60
  4. Step 4: Simplify right side
    146,770.80x = 17,609,307,597.36
  5. Step 5: Solve for x
    x = 17,609,307,597.36/146,770.80
  6. Step 6: Final answer
    x = 119,978.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.